#1B9F43#1B9F43

#1B9F43 is a mid, vivid green. Relative luminance 0.254; OKLCH L 61.6% C 0.170 H 147.8°. Best body text is #000000 at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#1B9F43
RGB	rgb(27, 159, 67)
HSL	hsl(138, 71%, 36%)
HSV	hsv(138, 83%, 62%)
CMYK	cmyk(83%, 0%, 57.9%, 37.6%)
CIE-LAB	lab(57.49, -53.60, 38.05)
CIE-LCH	lch(57.49, 65.73, 144.63°)
OKLab	oklab(61.58% -0.1439 0.0905)
OKLCH	oklch(61.58% 0.17 147.8)
XYZ	xyz(13.8621, 25.4328, 9.4875)
Luminance	0.2544 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B9F43 #9F1B77

analogous

#359F1B #1B9F43 #1B9F85

triadic

#1B9F43 #431B9F #9F431B

tetradic

#1B9F43 #1B359F #9F1B77 #9F851B

square

#1B9F43 #1B359F #9F1B77 #9F851B

split-complementary

#1B9F43 #851B9F #9F1B35

monochromatic

#093617 #126B2D #1B9F43 #24D359 #53E27E

Accessibility & contrast

On white

3.45

#1B9F43 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.09

#1B9F43 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #1B9F43

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B9F43	#FFFFFF	#000000	##000000
##1B9F43	1.00	3.45	6.09	6.09
#FFFFFF	3.45	1.00	21.00	21.00
#000000	6.09	21.00	1.00	1.00
##000000	6.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1903A

Deuteranopia (green-blind)

#93864A

Tritanopia (blue-blind)

#009C8B

Achromatopsia (no color)

#8A8A8A

Design tokens & code

CSS

--color: #1b9f43;
/* rgb */ color: rgb(27, 159, 67);
/* oklch */ color: oklch(61.6% 0.170 147.8);

Tailwind

colors: {
  custom: {
    50: '#71bd7a',
    500: '#1b9f43',
    950: '#000000',
  },
}

SCSS

$custom: #1b9f43;
$custom-light: #71bd7a;
$custom-dark: #000000;

JSON

{
  "hex": "#1b9f43",
  "rgb": {
    "r": 27,
    "g": 159,
    "b": 67
  },
  "hsl": {
    "h": 138.182,
    "s": 70.968,
    "l": 36.471
  },
  "oklch": {
    "l": 0.61577,
    "c": 0.17004,
    "h": 147.8
  },
  "luminance": 0.25435
}

Semantic roles & 50–950 ramp

primary

#1B9F43

secondary

#C551A2

accent

#3AB7EE

background

#F7FBF7

surface

#EDF7EE

border

#C8D0C9

text

#091209

muted

#7B817B

Preview Lab

Preview with #1B9F43

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →